staging:iio:dac:ad5504: Use strtobool for boolean values

Use strtobool for parsing the powerdown value instead of strict_strtol, since
the powerdown attribute is a boolean value.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Acked-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/iio/dac/ad5504.c b/drivers/staging/iio/dac/ad5504.c
index 331b536ec8aa2f54a25fa3e02d59f77cd6c6d1b2..220150d2a165e31dc351091242213adc5eae22b9 100644 (file)
--- a/drivers/staging/iio/dac/ad5504.c
+++ b/drivers/staging/iio/dac/ad5504.c
@@ -147,20 +147,18 @@ static ssize_t ad5504_write_dac_powerdown(struct iio_dev *indio_dev,
        uintptr_t private, const struct iio_chan_spec *chan, const char *buf,
        size_t len)
 {
-       long readin;
+       bool pwr_down;
        int ret;
        struct ad5504_state *st = iio_priv(indio_dev);
 
-       ret = strict_strtol(buf, 10, &readin);
+       ret = strtobool(buf, &pwr_down);
        if (ret)
                return ret;
 
-       if (readin == 0)
+       if (pwr_down)
                st->pwr_down_mask |= (1 << chan->channel);
-       else if (readin == 1)
-               st->pwr_down_mask &= ~(1 << chan->channel);
        else
-               ret = -EINVAL;
+               st->pwr_down_mask &= ~(1 << chan->channel);
 
        ret = ad5504_spi_write(st->spi, AD5504_ADDR_CTRL,
                                AD5504_DAC_PWRDWN_MODE(st->pwr_down_mode) |